998
FNCA52 TJSJ 040856
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
456 AM AST WED MAR 4 2026
DISCUSSION
THE KBDI REMAINS ABOVE CRITICAL FIRE WEATHER THRESHOLDS IN CABO
ROJO AND BELOW THRESHOLDS IN GUANICA AND CAMP SANTIAGO. BREEZY TO
WINDY E TO ENE WINDS WILL CONTINUE UP TO AT 16 TO 25 MPH WITH
HIGHER GUSTS. A PATCH OF MOISTURE APPROACHING THE AREA CAN
MAINTAIN RH VALUES JUST AT THRESHOLD VALUES, HOWEVER BREEZY TO
WINDY FLOW WILL REMAIN. THIS WILL MAINTAIN AT LEAST A MODERATE
FIRE DANGER RISK. WE URGE PARTNERS TO CONTINUE MONITORING UPDATES
DURING THE MORNING FOR A POSSIBLE HIGH FIRE DANGER RISK.
PRZ014-050900-
SOUTHEAST COASTAL PLAINS-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 30
TEMP (24H TREND) 87 (+2) 68 (-3) 87
RH % (24H TREND) 57 (+5) 92 (+4) 56
WIND 20FT/EARLY(MPH) E 18 G24 E 16 G20 E 21 G28
WIND 20FT/LATE(MPH) E 18 G24 E 16 G20 E 21 G28
MIXING HGT(FT-AGL/MSL)5390 5390
TRANSPORT WND (MPH) E 20 E 23
VENT RATE (KT-FT) 91630 107800
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-050900-
SOUTHERN HILLS-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 0 40
TEMP (24H TREND) 83 (+3) 65 (-4) 83
RH % (24H TREND) 62 (+1) 95 (+7) 61
WIND 20FT/EARLY(MPH) E 16 E 14 E 18
WIND 20FT/LATE(MPH) E 16 E 14 E 18
MIXING HGT(FT-AGL/MSL)6350 5800
TRANSPORT WND (MPH) E 20 E 23
VENT RATE (KT-FT) 107950 116000
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-050900-
NORTH COASTAL PLAINS-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 30
TEMP (24H TREND) 85 (0) 68 (-3) 85
RH % (24H TREND) 62 (+3) 96 (+2) 63
WIND 20FT/EARLY(MPH) E 23 G25 E 20 G23 E 21 G23
WIND 20FT/LATE(MPH) E 23 G25 E 20 G23 E 21 G23
MIXING HGT(FT-AGL/MSL)5210 4980
TRANSPORT WND (MPH) E 21 E 26
VENT RATE (KT-FT) 93780 114540
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-050900-
NORTHERN HILLS-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 30
TEMP (24H TREND) 83 (-1) 66 (-3) 85
RH % (24H TREND) 63 (+7) 97 (+2) 61
WIND 20FT/EARLY(MPH) E 21 E 19 E 20
WIND 20FT/LATE(MPH) E 21 E 19 E 20
MIXING HGT(FT-AGL/MSL)6390 5560
TRANSPORT WND (MPH) E 18 E 22
VENT RATE (KT-FT) 102240 105640
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-050900-
WEST COAST-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 10 60
TEMP (24H TREND) 87 (0) 66 (-3) 87
RH % (24H TREND) 58 (+3) 94 (+5) 57
WIND 20FT/EARLY(MPH) E 17 E 14 E 17
WIND 20FT/LATE(MPH) E 17 E 14 E 17
MIXING HGT(FT-AGL/MSL)5660 5500
TRANSPORT WND (MPH) E 14 E 16
VENT RATE (KT-FT) 67920 77000
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-050900-
EASTERN INTERIOR-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 30
TEMP (24H TREND) 83 (+1) 66 (-4) 82
RH % (24H TREND) 63 (0) 97 (+2) 66
WIND 20FT/EARLY(MPH) E 17 E 16 E 19
WIND 20FT/LATE(MPH) E 17 E 16 E 19
MIXING HGT(FT-AGL/MSL)5410 4750
TRANSPORT WND (MPH) E 20 E 24
VENT RATE (KT-FT) 91970 99750
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-050900-
LUQUILLO MOUNTAIN RANGE-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 40
TEMP (24H TREND) 80 (+3) 65 (-4) 79
RH % (24H TREND) 66 (-2) 99 (+2) 70
WIND 20FT/EARLY(MPH) E 14 G17 E 12 E 17 G19
WIND 20FT/LATE(MPH) E 14 G17 E 12 E 17 G19
MIXING HGT(FT-AGL/MSL)3900 3710
TRANSPORT WND (MPH) E 22 E 26
VENT RATE (KT-FT) 74100 85330
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-050900-
CENTRAL MOUNTAIN RANGE-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 40
TEMP (24H TREND) 82 (+2) 62 (-5) 83
RH % (24H TREND) 62 (+4) 97 (+5) 60
WIND 20FT/EARLY(MPH) E 13 E 12 E 13
WIND 20FT/LATE(MPH) E 13 E 12 E 13
MIXING HGT(FT-AGL/MSL)7650 6140
TRANSPORT WND (MPH) E 15 E 18
VENT RATE (KT-FT) 99450 98240
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-050900-
CAYEY MOUNTAIN RANGE-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 30
TEMP (24H TREND) 78 (+1) 65 (-3) 78
RH % (24H TREND) 68 (0) 98 (+2) 71
WIND 20FT/EARLY(MPH) E 14 E 12 E 17
WIND 20FT/LATE(MPH) E 14 E 12 E 17
MIXING HGT(FT-AGL/MSL)4350 4100
TRANSPORT WND (MPH) E 21 E 26
VENT RATE (KT-FT) 78300 94300
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-050900-
VIEQUES-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 40
TEMP (24H TREND) 87 (+2) 71 (-2) 85
RH % (24H TREND) 54 (-4) 89 (-1) 59
WIND 20FT/EARLY(MPH) E 20 G24 E 19 G23 E 21 G26
WIND 20FT/LATE(MPH) E 20 G24 E 19 G23 E 21 G26
MIXING HGT(FT-AGL/MSL)3530 3670
TRANSPORT WND (MPH) E 23 E 29
VENT RATE (KT-FT) 70600 91750
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-050900-
CULEBRA-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 30
TEMP (24H TREND) 87 (+2) 72 (-3) 85
RH % (24H TREND) 57 (-3) 91 (+3) 59
WIND 20FT/EARLY(MPH) E 20 G24 E 19 G23 E 21 G26
WIND 20FT/LATE(MPH) E 20 G24 E 19 G23 E 21 G26
MIXING HGT(FT-AGL/MSL)3540 3770
TRANSPORT WND (MPH) E 25 E 28
VENT RATE (KT-FT) 77880 90480
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-050900-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 40 0 50
TEMP (24H TREND) 88 (+1) 67 (-4) 88
RH % (24H TREND) 55 (+6) 89 (+6) 53
WIND 20FT/EARLY(MPH) E 24 G31 E 21 G26 E 24 G30
WIND 20FT/LATE(MPH) E 24 G31 E 21 G26 E 24 G30
MIXING HGT(FT-AGL/MSL)5650 5730
TRANSPORT WND (MPH) E 18 E 20
VENT RATE (KT-FT) 90400 97410
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-050900-
SAINT THOMAS AND SAINT JOHN-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 30
TEMP (24H TREND) 85 (+1) 72 (-3) 85
RH % (24H TREND) 56 (-3) 89 (+2) 57
WIND 20FT/EARLY(MPH) E 20 G25 E 19 G23 E 21 G27
WIND 20FT/LATE(MPH) E 20 G25 E 19 G23 E 21 G27
MIXING HGT(FT-AGL/MSL)3640 3780
TRANSPORT WND (MPH) E 24 E 26
VENT RATE (KT-FT) 76440 86940
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-050900-
ST CROIX-
456 AM AST WED MAR 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 30
TEMP (24H TREND) 86 (+1) 71 (-4) 86
RH % (24H TREND) 55 (-5) 91 (+4) 60
WIND 20FT/EARLY(MPH) E 20 G25 E 18 G22 E 20 G24
WIND 20FT/LATE(MPH) E 20 G25 E 18 G22 E 20 G24
MIXING HGT(FT-AGL/MSL)4000 4290
TRANSPORT WND (MPH) E 28 E 26
VENT RATE (KT-FT) 96000 98670
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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